.author{padding: 10px;margin-bottom:10px;border-bottom: 1px solid rgba(255,255,255,.5);}
.author .thumb{height: 45px;width: 45px;float:left}
.author .thumb img{height:100%;width:100%;}
.author .header{width: calc(100% - 55px);height:45px;float:right}
.author .header .top{margin-bottom: 3px;}